Method for reinforcing repair of polycyclic aromatic hydrocarbon polluted water body by modifying aerobic granular sludge with cyclodextrin

The invention relates to a method for reinforcing repair of a polycyclic aromatic hydrocarbon polluted water body by modifying aerobic granular sludge with cyclodextrin. The aerobic granular sludge is modified with hydroxypropyl-beta-cyclodextrin (HP-beta-CD), and the HP-beta-CD has good dissolvability while maintaining a cyclodextrin cavity, and is easily and completely combined with the aerobic granular sludge for modification. The modified aerobic granular sludge rapidly adsorbs and enriches the PAHs, the hydrophobic groups of the PAHs are adsorbed through the hydrophobic cavity of the cyclodextrin, and the PAHs are included in the cavity, so that the removal effect on the PAHs in the water is substantially improved. 本发明涉及一种通过环糊精修饰好氧颗粒污泥来强化修复多环芳烃污染水体的方法，本发明采用羟丙基-β-环糊精(HP-β-CD)对好养颗粒污泥进行修饰，羟丙基-β-环糊精(HP-β-CD)在保持环糊精空腔的同时溶解性好，易与好养颗粒污泥充分结合并进行修饰，修饰后的好养颗粒污泥对PAHs快速吸附并富集，然后通过环糊精的疏水腔对PAHs的疏水基团进行吸附并将PAHs包合在空腔中，大大提高了对水中PAHs的去除效果。